technically it is a CHOICE like alcoholism,.........as much as those things can be a choice
we MAY very well be genetically predisposed to things, for example one person might be more apt to become an alcoholic, and another may be more apt to be attracted to males and have sex with men
but at the end of the day, it IS a choice...........getting cancer is NOT a choice, being born black is NOT a choice
but you do have to make a conscious decision to have a drink, or suck a cock